128671313940

Names of 128671313940

• Cardinal: 128671313940 can be written as One hundred twenty-eight billion, six hundred seventy-one million, three hundred thirteen thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.2867131394 × 10¹¹

Factors of 128671313940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 69

Divisors of 128671313940

• Number of divisors d(n): 792
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 17 18 20 26 27 29 30 34 36 39 45 51 52 54 58 60 65 68 78 81 85 87 90 102 108 116 117 130 135 145 153 156 162 170 174 180 195 204 221 234 243 255 260 261 270 289 290 306 324 340 348 351 377 390 405 435 442 459 468 486 493 510 522 540 578 580 585 612 663 702 729 754 765 780 783 810 867 870 884 918 972 986 1020 1044 1053 1105 1131 1156 1170 1215 1305 1326 1377 1404 1445 1458 1479 1508 1530 1566 1620 1734 1740 1755 1836 1885 1972 1989 2106 2187 2210 2262 2295 2340 2349 2430 2465 2601 2610 2652 2754 2890 2916 2958 3060 3132 3159 3315 3393 3468 3510 3645 3757 3770 3915 3978 4131 4212 4335 4374 4420 4437 4524 4590 4698 4860 4930 5202 5220 5265 5508 5655 5780 5916 5967 6318 6409 6561 6630 6786 6885 7020 7047 7290 7395 7514 7540 7803 7830 7956 8262 8381 8670 8748 8874 9180 9396 9477 9860 9945 10179 10404 10530 10935 11271 11310 11745 11934 12393 12636 12818 13005 13122 13260 13311 13572 13770 14094 14580 14790 15028 15606 15660 15795 16524 16762 16965 17340 17748 17901 18785 18954 19227 19683 19890 20358 20655 21060 21141 21870 22185 22542 22620 23409 23490 23868 24786 25143 25636 26010 26244 26622 27540 28188 28431 29580 29835 30537 31212 31590 32045 32805 33524 33813 33930 35235 35802 37179 37570 37908 38454 39015 39366 39780 39933 40716 41310 41905 42282 43740 44370 45084 46818 46980 47385 49572 50286 50895 52020 53244 53703 56355 56862 57681 59049 59670 61074 61965 63180 63423 64090 65610 66555 67626 67860 70227 70470 71604 74358 75140 75429 76908 78030 78732 79866 82620 83810 84564 85293 88740 89505 91611 93636 94770 96135 98415 100572 101439 101790 105705 107406 108953 111537 112710 113724 115362 117045 118098 119340 119799 122148 123930 125715 126846 128180 131220 133110 135252 140454 140940 142155 148716 150858 152685 156060 159732 161109 167620 169065 170586 173043 179010 183222 185895 189540 190269 192270 196830 199665 202878 203580 210681 211410 214812 217906 223074 225420 226287 230724 234090 236196 239598 247860 251430 253692 255879 266220 268515 274833 280908 284310 288405 295245 301716 304317 305370 317115 322218 326859 334611 338130 341172 346086 351135 358020 359397 366444 371790 377145 380538 384540 393660 399330 405756 421362 422820 426465 435812 446148 452574 458055 468180 479196 483327 502860 507195 511758 519129 537030 544765 549666 557685 568620 570807 576810 590490 598995 608634 610740 632043 634230 644436 653718 669222 676260 678861 692172 702270 718794 743580 754290 761076 767637 798660 805545 824499 842724 852930 865215 905148 912951 916110 951345 966654 980577 1003833 1014390 1023516 1038258 1053405 1074060 1078191 1089530 1099332 1115370 1131435 1141614 1153620 1180980 1197990 1217268 1264086 1268460 1279395 1307436 1338444 1357722 1374165 1404540 1437588 1449981 1508580 1521585 1535274 1557387 1611090 1634295 1648998 1673055 1705860 1712421 1730430 1796985 1825902 1832220 1896129 1902690 1933308 1961154 2007666 2028780 2036583 2076516 2106810 2156382 2179060 2230740 2262870 2283228 2395980 2416635 2473497 2528172 2558790 2595645 2715444 2738853 2748330 2854035 2899962 2941731 3043170 3070548 3114774 3160215 3222180 3234573 3268590 3297996 3346110 3394305 3424842 3460860 3593970 3651804 3792258 3805380 3838185 3922308 4015332 4073166 4122495 4213620 4312764 4349943 4525740 4564755 4672161 4833270 4902885 4946994 5019165 5117580 5191290 5390955 5477706 5496660 5688387 5708070 5799924 5883462 6086340 6109749 6229548 6320430 6469146 6537180 6692220 6788610 6849684 7187940 7249905 7420491 7584516 7676370 7786935 8146332 8216559 8244990 8562105 8699886 8825193 9129510 9344322 9480645 9666540 9703719 9805770 9893988 10038330 10182915 10382580 10781910 10955412 11376774 11416140 11766924 12219498 12367485 12640860 12938292 13049829 13577220 13694265 14016483 14499810 14708655 14840982 15352740 15573870 16172865 16433118 16489980 17065161 17124210 17399772 17650386 18259020 18329247 18688644 18961290 19407438 19611540 20076660 20365830 21563820 21749715 22261473 22753548 23360805 24438996 24649677 24734970 26099658 26475579 27388530 28032966 28441935 28999620 29111157 29417310 29681964 30548745 31147740 32345730 32866236 34130322 34248420 35300772 36658494 37102455 37922580 38814876 40731660 41082795 42049449 43499430 44125965 44522946 46721610 48518595 49299354 49469940 52199316 52951158 54777060 54987741 56065932 56883870 58222314 58834620 61097490 64691460 65249145 68260644 70082415 73316988 73949031 74204910 79426737 82165590 84098898 85325805 86998860 88251930 89045892 91646235 93443220 97037190 98598708 105902316 109975482 111307365 113767740 116444628 122194980 123248385 126148347 130498290 132377895 140164830 145555785 147898062 148409820 158853474 164331180 164963223 168197796 170651610 176503860 183292470 194074380 210247245 219950964 221847093 222614730 238280211 246496770 252296694 260996580 264755790 274938705 280329660 291111570 295796124 317706948 329926446 341303220 366584940 369745155 378445041 397133685 420494490 443694186 445229460 476560422 492993540 494889669 504593388 529511580 549877410 582223140 630741735 659852892 714840633 739490310 756890082 794267370 824816115 840988980 887388372 953120844 989779338 1099754820 1109235465 1191401055 1261483470 1429681266 1478980620 1513780164 1588534740 1649632230 1892225205 1979558676 2144521899 2218470930 2382802110 2474448345 2522966940 2859362532 3299264460 3574203165 3784450410 4289043798 4436941860 4765604220 4948896690 6433565697 7148406330 7568900820 8578087596 9897793380 10722609495 12867131394 14296812660 21445218990 25734262788 32167828485 42890437980 64335656970 128671313940
• Sum of all divisors σ(n): 479665310040
• Sum of proper divisors (its aliquot sum) s(n): 350993996100
• 128671313940 is an abundant number, because the sum of its proper divisors (350993996100) is greater than itself. Its abundance is 222322682160

Bases of 128671313940

• Binary: 1110111110101011010000111000000010100₂
• Hexadecimal: 0x1DF5687014
• Base-36: 1N3ZKT90

Squares and roots of 128671313940

• 128671313940 squared (128671313940²) is 16556307031046038323600
• 128671313940 cubed (128671313940³) is 2130321779678754123729206910984000
• The square root of 128671313940 is 358707.8392508311
• The cube root of 128671313940 is 5048.4792851423

Scales and comparisons

• 128,671,313,940 seconds is equal to 4,091 years, 18 weeks, 1 day, 7 hours, 39 minutes.
• To count from 1 to 128,671,313,940 would take you about eight thousand, one hundred eighty-two years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 128671313940 cubic inches would be around 420.7 feet tall.

Recreational maths with 128671313940

• 128671313940 backwards is 049313176821
• 128671313940 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128671313940's digits is 45
• More coming soon!